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jekas [21]
3 years ago
10

Section Review 22 1. What is meant by the term continuous spectrum?

Chemistry
1 answer:
just olya [345]3 years ago
5 0
A set of attainable values for some physical quantity such as energy or wavelength
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Why are summer days longer than winter days on Earth?
zimovet [89]

Answer:

A. During the summer, Earth's rotational axis is parallel to the Sun's rotational axis.

Explanation:

Actually, though, the Earth is tilted 23.4 degrees! (A circle is 360 degrees.) This tilt is the reason that days are longer in the summer and shorter in the winter. The hemisphere that's tilted closest to the Sun has the longest, brightest days because it gets more direct light from the Sun's rays.

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What characteristics do the elements in a group share? In a period, share?
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Answer:

The elements in same period have same principle quantum number or energy shell.

The elements in same group shows similar chemical and properties.

Explanation:

Inn group:

The elements in same group i.e present in vertical column shows similar chemical properties.

The elements in same group having same number of valance electrons. while in chemical reaction bonds are break and formed and valance electrons are involved. That's why elements in same group having same number of valance electrons and shows similar chemical properties.

In period:

While as we move from left to right the number of valance electron increase by one in every element. But the electron is added in same shell which means that their physical and chemical properties are different but principal quantum number is same.

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3 years ago
W do I find the family # and the period # for aluminum on the periodic table
Sati [7]

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Aluminum is the 13th element on the periodic table. It is located in period 3 and family 13.

Explanation:

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What is the scientific method describes as nonlinear
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Scientists often repeat one or more steps several times.
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The experimental procedure has you wash your thermometer and dry it after you measure the temperature of naoh solution and befor
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